304 Stainless Steel Rectangular Bar 1/2in x 1-1/2in x 48in - Solid

In this review the 304 stainless steel rectangular bar is examined for fabricators, makers, and engineers who need a reliable, general-purpose stainless stock. The bottom line: this unpolished, annealed bar delivers the familiar strength and corrosion resistance of 304 stainless steel in a ready-to-machine mill finish, making it useful for trim, food-contact fixtures, and many industrial applications. The review highlights how the 1/2in thickness and 1-1/2in width balance rigidity and ease of cutting, and why buyers will value its compliance with common material specifications.

Key Features

• Material: 304 stainless steel provides good corrosion resistance and high strength suitable for many environments.
• Finish: Unpolished mill finish leaves a work-ready surface that is easier to machine or finish to match project needs.
• Heat treatment: Annealed condition improves formability and reduces the risk of cracking during bending or forming operations.
• Dimensions: The 1/2in thickness and 1-1/2in width give a stiff, structural feel while remaining convenient to cut to size.
• Length: At 48in long the bar spans most small-to-medium fabrication needs without extra handling or joining.
• Standards compliance: Meets multiple aerospace and material standards, giving confidence for regulated applications.

Who It's For

This bar is aimed at metalworkers, fabricators, and maintenance shops that need a consistent, machinable stainless stock for brackets, trim, foodservice fixtures, or small structural parts. Its compliance with several standards makes it appropriate for prototyping and low-volume production where documented material grade is required.

Those who need a polished appearance straight from the supplier, very tight custom tolerances, or unusual cross sections should look elsewhere; this product is an unpolished, mill-finish bar intended for downstream finishing or machining.

Pros & Cons

Pros

• Reliable corrosion resistance and strength from 304 stainless for a wide range of uses.
• Annealed condition improves workability for bending and forming operations.
• Standard 48in length and common cross section simplify planning and cutting for projects.

Cons

• Mill finish may require additional polishing for visible trim or architectural applications.
• Some customers report slight variation in delivered length versus nominal, so precision projects should verify dimensions on arrival.

Specifications

Material	304 stainless steel
Finish	Unpolished (mill) finish
Condition	Annealed
Thickness	1/2in
Width	1-1/2in
Length	48in
Standards	Meets AMS-QQ-S-763, AMS-5639, AMS-5647, ASTM-A276, ASTM-A479, ASTM-F899, ASTM-A240 (call for availability)

Our Verdict

The 304 stainless steel rectangular bar is a practical choice for shops and designers who need a durable, work-ready stainless stock that meets common industry standards. It represents good value when downstream machining or finishing is planned, offering the durability and corrosion resistance expected from 304 stainless steel while remaining easy to handle and cut.

Frequently Asked Questions

Is this bar ready for use in foodservice fixtures?
The 304 alloy is commonly used in food and beverage applications, but the mill finish may require additional cleaning or polishing depending on the specific sanitation requirements.

Can this be bent or formed?
Yes, the bar is supplied annealed which improves formability for bending and light forming operations, though thickness will limit tight-radius bends.

Are exact dimensions guaranteed?
Dimensions are nominal but customers report mixed feedback on length accuracy, so measure on receipt if a precise fit is required.